| 山西耿庄金矿FeS2-Fe(Ni,Co)S2晶须的发现与成因探讨 |
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| 引用本文： | 黄菲,金成洙,边为民,邓江宁,赵国君.山西耿庄金矿FeS2-Fe(Ni,Co)S2晶须的发现与成因探讨[J].矿物学报,2004,24(4):429-434. |
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| 作者姓名： | 黄菲 金成洙 边为民 邓江宁 赵国君 |
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| 作者单位： | 1. 东北大学,辽宁,沈阳,110004;南京大学,内生金属矿床成矿机制研究国家重点实验室,江苏,南京,210008
2. 东北大学,辽宁,沈阳,110004 |
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| 基金项目： | 南京大学内生金属矿床成矿机制研究国家重点实验室基金 |
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| 摘 要： | 在山西耿庄金矿区含金隐爆角砾岩体的晶洞内发现重晶石晶体中大量晶须构成了明显的环带状。用扫描电镜、电子探针等研究了晶须的物理性质、形态特征和化学成分，结果表明，晶须属FeS2-Fe(Ni，Co)S2类质同象系列。根据地质背景，结合同位素、岩石化学分析结果和包裹体研究成果等，讨论了FeS2-Fe(Ni，Co)S2系列晶须的成因，认为耿庄FeS2-Fe(Ni，Co)S2系列晶须是在浅成、低温条件下由幔源岩浆期后热液和大气水热液经沸腾和混合作用形成；晶须结晶的溶液饱和度低于临界过饱和度，晶须形成后经历了二次加厚过程。深入研究晶须生长原理和条件，对进一步了解耿庄成矿热液的演化和相关环境有实际意义，同时对研究矿物形貌与生长环境条件的相关性也具有重要意义。
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| 关 键 词： | 成因探讨 FeS2 成矿热液 类质同象 幔源岩 隐爆角砾岩 金矿 晶须 结晶 过饱和度 |
| 文章编号： | 1000-4734(2004)04-0429-06 |
| 修稿时间： | 2004年7月3日 |
THE DISCOVERY AND METALLOGENY OF FeS2-Fe(Ni, Co)S2 WHISKERS OF GENGZHUANG GOLD DEPOSIT,SHZNXI PROVINCE |
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| HUANG Fei,JIN Cheng-zhu,BIAN Wei-min,DENG Jiang-ning,ZHAO Guo-jun.THE DISCOVERY AND METALLOGENY OF FeS2-Fe(Ni, Co)S2 WHISKERS OF GENGZHUANG GOLD DEPOSIT,SHZNXI PROVINCE[J].Acta Mineralogica Sinica,2004,24(4):429-434. |
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| Authors: | HUANG Fei JIN Cheng-zhu BIAN Wei-min DENG Jiang-ning ZHAO Guo-jun |
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| Abstract: | Griddle-shaped belts constituted by many whiskers in barite crystals were discovered in the cavities of breccia bodies of the Gengzhuang gold deposit, Shanxi Province. The results of SEM and microprobe analysis indicate that the fibrous inclusions are FeS_(2)-Fe(Ni, Co)S_(2)whiskers. According to the geological setting, in combination with the isotope, petrochemistry and fluid data, the FeS_(2)-Fe(Ni, Co)S_(2) whisker series were formed by mixing and wallop of mantle post-magmatic hydrothermal fluid and meteorological water under the conditions of epithermal and low temperatures. The crystallized saturation of the whiskers is lower than the critical supersaturation, indicative of rethickening. Detailed research on the principle and conditions of the growth of whiskers is of practical importance to the evolution of metallogenic solutions and the correlation between physiognomy and growing circumstance. |
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| Keywords: | Gengzhaung gold deposit whisker barite Genesis |
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